beautypg.com

Configuring power or delta current – EXFO IQS-2400 WDM Laser Source for IQS-500/600 User Manual

Page 36

background image

Setting Up the WDM Laser Source

30

IQS-2400

Configuring Power or Delta Current

Configuring Power or Delta Current

Values appearing on the display correspond to:

³

the actual value on the source port obtained in Normal and Dither
Modulation modes at selected wavelength

OR

³

the delta obtained after switching to High Wavelength Stability and
On/Off modes).

Adjustable parameters depend on the control mode:

³

Normal and Dither modes: to adjust the source power. Relative value is
only available for these modes.

³

High Wavelength Stability and On/Off Modulation modes: once you
have set the desired power in Normal mode, you can use these modes
to enhance wavelength stability at the established value (permitted
tuning range: ±1 mA for temperature/wavelength).

³

In all modes, modifying the power current also modifies the internal
laser temperature. The source then takes a few seconds to adjust to
the new value and a message will be displayed.

The main window data display differs for each control mode.